Inkjet recording apparatus and method

Details Inkjet recording apparatus and method Inkjet recording apparatus and method

2009-03-30

2011-10-25

Lepisto, Ryan (Department: 2883)

Incremental printing of symbolic information

Ink jet

Controller

C347S005000, C347S006000, C347S007000, C347S010000, C347S011000, C347S012000, C347S013000, C347S014000, C347S015000, C347S017000

Reexamination Certificate

active

08042898

ABSTRACT:
The inkjet recording apparatus includes: an inkjet recording head which includes a nozzle through which liquid is ejected; a pressure regulating unit which includes a liquid chamber that communicates with the nozzle and a gas chamber that is partitioned from the liquid chamber by a flexible film; and a liquid chamber pressure controlling device which controls a pressure of the liquid chamber to a predetermined negative pressure when carrying out back pressure control in which back pressure is applied to the liquid inside the nozzle, wherein: the flexible film causes change in the pressure of the liquid chamber when the liquid is supplied for at least a predetermined supply amount to the liquid chamber in a state where the gas chamber is open to air; and the liquid chamber pressure controlling device carries out the back pressure control after controlling the pressure of the liquid chamber to a predetermined value of positive pressure by supplying the liquid of at least the predetermined supply amount to the liquid chamber.

REFERENCES:
patent: 4514742 (1985-04-01), Suga et al.
patent: 6252616 (2001-06-01), Okazaki et al.
patent: 6378971 (2002-04-01), Tamura et al.
patent: 6851779 (2005-02-01), Okazaki et al.
patent: 7380925 (2008-06-01), Katayama et al.
patent: 7748811 (2010-07-01), Yamashita
patent: 2007-245452 (2007-09-01), None
patent: 2007-245568 (2007-09-01), None

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